If you are visiting Bangkok, stay here. I have nothing to complain about Klass's place. The experience exceeded my expectation.
The apartment was way bigger than I expected from the photos. It was spotless clean and quiet. Kitchen and bathroom were fully stocked with extra toilet papers, kitchen towels, plastic wrap, extra bath towels, laundry detergent, fabric softer, and etc. We even had bathrobes.
Location was amazing as it was right next to BTS station, convenient stores, restaurants, grocery markets, and lots of coffee shops.
There were security guards 24 hours at the property so we felt very safe.
Klass was friendly and responsive. He left us welcome drinks and gave us great recommendations for traditional Thai massage and local food.
When I visit Bangkok next time, I am definitely going to stay here again.